Home / 7,440.29-11,160.09-3,279.18

Finding the Fourth Proportional to 7,440.29, 11,160.09 and 3,279.18

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Solution

The fourth proportional to 7,440.29, 11,160.09 and 3,279.18 is: 4,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,440.29 : 11,160.09 = 3,279.18 : x
  2. Step 2: Convert to fraction form
    7,440.29/11,160.09 = 3,279.18/x
  3. Step 3: Cross multiply
    7,440.29x = 11,160.09 × 3,279.18
  4. Step 4: Simplify right side
    7,440.29x = 36,595,943.93
  5. Step 5: Solve for x
    x = 36,595,943.93/7,440.29
  6. Step 6: Final answer
    x = 4,918.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.